A capuchin named Joker started the apparent trend, leading researchers to suspect "there was something a little quirky about ...

Plus, researchers could hear adult howler monkeys calling back and forth with the infants, who would sometimes try to crawl ...

Observations of Coiba's tool-using immature capuchin monkeys show them carrying abducted infant howler monkeys. What is the ...

A gang of young white-faced capuchins, clever monkeys already known for inventing the use of stone tools, has taken to ...

Capuchins are also known for developing odd social rituals across their range. Scientists studying mainland populations have ...

On an island off the coast of Panama lives a population of wild primates with a remarkable culture. White-faced capuchins on ...

Monkeys have been known to “adopt” abandoned infants of the same ... Instead, the capuchins toted around the baby howlers for days with few interactions — no play, minimal aggression and ...

Gone Monkey Gone! Capuchin Named 'Joker' Sparks Cruel Baby Howler Monkey Abduction Fad On Panamanian Island. A capuchin monkey named 'Joker' has sparked a bizarre and cruel fad among his kind on an ...

Female monkeys have been known to “adopt” babies from other species and ... though eventually the baby howlers died because they didn’t have access to their mothers’ breast milk.